TITLE:   GCN CIRCULAR
NUMBER:  38139
SUBJECT: GRB 241108A: Swift-XRT observations
DATE:    24/11/09 07:43:33 GMT
FROM:    Phil Evans at U of Leicester <pae9@star.le.ac.uk>

D.N. Burrows (PSU), J.P. Osborne (U. Leicester), K.L. Page (U.
Leicester), V. D'Elia (SSDC & INAF-OAR), B. Sbarufatti (INAF-OAB), C.
Salvaggio (INAF-OAB), M. A. Williams (PSU), S. Dichiara (PSU) and P.A.
Evans (U. Leicester) reports on behalf of the Swift-XRT team:

Swift-XRT has performed follow-up observations of the
SVOM/ECLAIRs-detected burst GRB 241108A, collecting 2.9 ks of Photon
Counting (PC) mode data between T0+43.8 ks and T0+50.6 ks. 

One uncatalogued X-ray source has been detected, it is below the RASS
limit and shows no definitive signs of fading. Therefore, at the
present time we cannot confirm this as the afterglow. Details of this
source are given below:

Source 1:
  RA (J2000.0):  123.6378  =  08:14:33.07
  Dec (J2000.0): -7.0861  =  -07:05:09.9
  Error: 4.7 arcsec (radius, 90% conf.)
  Count-rate: (5.0 [+2.0, -1.6])e-3 ct s^-1   
  Distance: 494 arcsec from SVOM/ECLAIRs position.
  Flux: (2.99 [+1.17, -0.93])e-13 erg cm^-2 s^-1 (observed, 0.3-10 keV)

The results of the XRT-team automatic analysis of the XRT observations,
including a position-specific upper limit calculator, are available at
https://www.swift.ac.uk/ToO_GRBs/00021729.

This circular is an official product of the Swift-XRT team.